Duplicating device



.1 622,41 March 29, 1927. A. BURDELL I 5 DUPLICATING DEVICE OriginalFiled July 5, 1924 2 Sheets-Shes; 2

I O I Patented Mar. 29, 1927.

UNITED STATES PAT-em: OFFICE.

ARTHUR BURDELL, 0F

ATLANTA, GEORGIA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO

A. S. GILMAN, 0F CLEVELAND, OHIO.

,nurmea'rrne DEVICE.

Application filed July 5,,1924, Serial No. 724,443. Renewed December 10,1926.

Generically, this invention relates to dllf plicating devices, but itmore especially com-' prehends the type adaptable for use in connectionwith a continuous sheet of stationery folded from alternate sides,bearing suitable-perforations, sothat by writing on theoriginal, anumber of duplicates may be provided. n

An important object of this invention is the provision of aduplica'tingdevice of the above character including novel carbon hold-'ing means, said means embodying a plural ity of detachable fingers, eachfinger provided with means for securing a sheet of carbon thereto, andadapted for insertion from opposite sides of the device, between thefolds of a sheet of stationery, folded alternately upon itself along itslongitudinal edges, the said holding means being adjust ablv movable,longitudinallyof the device, so that fresh portions of the inter-leavedcarbon sheets may be brought into duplicating position as desired.

Another important object of this invention is the provision of aduplicating device including a novel adjustable means for guiding andclamping the free ends of the tional stationery for use as desired.

With these and'other objects .in View, which Willbecome apparent as thedescription proceeds, the invention resides in the. construction,combination and arrangement of parts, hereinafter more fullydescribedand clai1ned,-aml illustrated in the accompanaying drawings inwhich like characters of reference indicate like parts throughput theseveral figures, of whichr 1 isa perspective view of proved duplicatingdevice; r

Fig. 2 is a vertical my im- Fig. 3 is a transverse vertical section onthe line 3-3 of Fig. 1. c I

Fig. 4 is a detailed section showing the operation of the paper lifter;

{his a bottom plan view of the cover;

1g. 6 is a sectional view taken on line isfac'tory or susceptible of usein connection with all forms of duplication stationery, es-

pecially the type known as fan fold'form,

which is an endless strip folded u on itself alternately from oppositesides, an it was to ]produce a device embodying novel carbon oldingmeans expediting the insertion of se device, the unitary carbon holdingindividual carbon sheets from either of the structure being susceptibleof longitudinal movement with respect to the device,-novel stationeryguiding, clamping,- cutting and lifting structure, as well as to improvege nerically duplicating devices heretofore in use, that I evolvedtheparticular type of duplicating device forming the subject matter ofthis invention.

In the illustrated embodiment characterizing this invention, there isshown a body or cabinet 1 rectangular in configuration and having acover '2, hingedly secured to one end of the cabinet in anysuitablemanner.

The rearwardly extending hinge supports 4 are secured to each side ofthe cabinet flush w'ith'its upper edge and adapted for pivotalconnection with the brackets 5 which are secured at their inner ends tothe under surface of the cover 2, and are formed at their outer endswith upstanding tips 6 adapted to support and provide bearings for theend roller 7. Suitably secured to the upper surface of the cover 2spaced from eitherside are the longitudinal metal strips 8 adapted tosupport and provide a track for the movable carbon holding structure Aembodying a bar S'slidably supported by the track member-s8 and formedwith the downwardlyprojecting guide flanges .10. Mounted on each end i Iofbar 9 suitably secured thereto or formed I longitudinal sectional newtherethrough; a I

integral therewith are the carbon finger sup half of the surface of eachblock being higher than the other half to support the carbon fingers 12at difierent levels. The supporting surfaces of block 12 are in adifierent plane from those of block 11 so that when the fingers 13 areoperatively positioned on the said blocks 11 and 12 they will extendrespectively in alternate and substantial superposed relation. The saidcarbon fingers being identical, for convenience in description only one,will be described in detail. Thefinger 13 comprises a thin metal stripto which is pivotedly secured a carbon clamping membe1 14 by liftingknob 15. Said clamping member is folded upon itself to embrace bothsides of said strip and one of its sides is provided with a plurality ofindentations to firmly contact the carbon sheet with the strip when theclamping member is brought to operative position. The fingers 13 areformed with the diagonally positioned lugs 16 directly under the liftingknobs which are adapted for insertion in corresponding apertures in thesurface of the blocks 11 and 12 and the said lifting knobs 15. areadapted to serve as operating means for attaching and detaching the saidfingers from the said blocks.

The bar 9 is provided with a depending rod or bolt 17 with its: lowerextremity terminating in an internally threaded traveler block 18designed for movement in the longitudinal slot 19 of the cover 2, andadapted to receive the screw 20 positioned directly beneath slot 19 andsecured to the under surface of the cover b supporting and bearingplates 21. In or er to provide a proper writing surface, the cover 2slopes downwardly from a point substantially coinci dent with the screw20 as at 22, andis provided with a metal writing surface 23.

The extension rod 24 formed with operating knob 25, which extends beyondthe end of the cabinet is mounted in supporting bracket 26 with itsinner end conne'cted'to longitudinal screw 20 byuniversal joint 27.

Sec ured to the under surface of the sloping or desk portion of thecover 2 is the centrally positioned supporting member 28 with each endterminating in depending aper-:

tured projections 29. Positioned at each side are the aligned brackets30 terminating in, similar depending apertured projections 31-. The saidportions 29 and 31 are adapted to provide bearings for and support therods 32 and 33 on each of which is mounted a tension spring 34. t

The clamping or knife member 35 is adapted to overlie the lower edge ofmetallic plate 23 and is formed with downwardly and rearwardly.extending arms 36, operable throu h slots 37 inthe cover 2. The. saidarms eing pivotedly supported by theouter.

ends'of rods 32 and 33. The free extremities of said arms 36 areapcrtured to receive the arm 42 and its inner end bifurcated to env ga ethe rod 38.

rom the foregoing it is apparent that by depressing the knob 40 the rod38 will depress the inner ends of arms 36 and member 41 which willsimultaneously raise knife member 35 and project upwardly arm 42 therebyelevating the free ends of paper 43 so it can be easily grasped andsevered along the edge of member 35.

To operate the device and to facilitate the feed of the paper 43 throughthe machine it is passed over a roller 44 suspended from the under sideof the cover by brackets 45, then over end roller 7 under guide brackets46 secured to the cover adjacent its rear end and over carbon holder'bar9. The carbon fingers 13 carrying carbon sheets 14 are then insertedbetween the folds of 'paper 43 from alternate sides and operativelypositioned in the blocks 11 and 12. The folded material is then insertedunder guide plates 47 secured to the cover 2 on either side of the plate23 and under clamping knife 35, whereupon the paper is ready to, bewritten upon and the desired duplication thereby effected.

caused to move longitudinally of the device on track members 8 andadvancing fresh carbon into duplicating position as desired.

In practice, I have found the form of my invention illustrated in theaccompanying drawings and referred to in the above description as thepreferred embodiment, is. the most eflicient and practical; yetrealizing the conditions concurrent with the adoption of my device willnecessarily vary, I desire to emphasize that' various minor changes indetails of construction, proportion and arrangement of parts, may beresorted to Within the scope of the appended claims without departn fromor sacrificing any of the principles of this invention.

Having thus described my invention, and without enumerating variationsand equivalents, what I desire protected by Letters Pat- I Sflld cover,a justable means for clamping the stationer to the cover, meanscoac'ting with the sai clamping means for effecting the release of theclamping means and a paper elevating arm simultaneously coactmg withsaid additional means to effect ele: vation'of the free end of thestationery above the surface of the cover. n

2. A duplicating device comprising a cabinet, a cover therefor overwhich a continuous strip of multi-folded stationery is adapted to pass,carbon holdin means lon gitudinally movable over sai cover, said meansembodying a plurality of carbon holding fingers detachablysupported inalternate planes and insertable between the folds of the stationeryalternately from opposite sides of the holder, means including a cuttingedge for clamping the end of the stationery to the writing surface,means also carried by the cover for elevating the end of the stationeryabove the saidwriting surface, and additional means for effectinreleasement of said clamping means wit concomitant operation of theelevating means.

3. A duplicating device comprisin a surface over which a strip ofmulti-fol ed stationery is adapted to pass, adjustable means forclamping the stationery to the surface, means coacting with the saidclamping means. for effecting therelease of the clamping means, and apaper elevating arm, simultaneously coactln with said releasing means toeffect elevation of the free end of the stationery above the surface ofthe cover.

4. A duplicating device com risin a surface over whicha strip ofmufti-fol ed stationery is adapted to ass, transfer sheets arrangedwithin the fo ds of the stationery, a

carbon-holder for engaging one extremity of a the carbon sheets, meansoperatively associated with the carbon-holder to effect longitudinaladjustment with respect to the stationary, a manually releasable'barnormally pressing the stationery againstthe surface over w ich itpasses, an arcuately movable finger normally positioned beneath saidsurface and coacting with the manually releasable bar to effectelevation of the stationery simultaneous with the actuation of saidclamping bars.

' ARTHUR BURDELL.

